Lab created gemstones are more affordable than natural stones, and unlike natural stones, they have no flaws.
Lab Gemstone – Alexandrite
Stable at all metal clay temperatures. Hardness: Lab Alexandrite has a rating of approximately 8.5 on Mohs hardness scale vs. a rating of 10 for diamond.
Click here for our Gemstone Firing Guide, a comprehensive list of gemstones, firing times and the temperatures each can withstand.
